Remove parameters from evaluation

Hi there,
we evaluate parametrized expressions using this amazing framework and it works fine. We calculate each parameter separately because it would be plain values or custom functions (which are solved by our framework).

Now, we want to remove some of these parameters from the evaluation process, because this parameters would regard to disable field values. There is a property called "HasResult" which we are using like this, hoping that this parameter will be ignored
during the evaluation;